Euglena

The organism is motile and free living. It was found in a drop of water from a pond. They move slowly. The organism is spindle shaped. The green colour is the chromatophores. Observe the red spot which is called stigma. An opening in the anterior end is the cytopharynx-it is a small chamber. The clearer regions may be vacuolar spaces. The Palmella stage forms when unfavourable conditions prevail. They are roughly spherical. They are loaded with chromatophores and also have the stigma-red eye spot. Do observe a flagellum of Euglena which had just reverted from the palmella stage.

Euglena: Free living stage

NOKIA 3110c. 1.3MP, 675x (45 X 15).

NOKIA 3110c. 1.3MP, 1500x (100 X 15). Oil immersion.

Palmellum of Euglena and transition from free living to Palmellum stage